To fill the gap, Gabriel's invested in a new service called The Filter, software that analyses your digital music library to understand your tastes. It generates playlists based on selected tracks and can recommend music chosen to match your tastes.
With film, television and literature moving online, solutions that help people find exactly what they want could become essential.
Artists should benefit. Personalised recommendation means they could achieve a direct link with appropriate audiences - great for non-mainstream arts.
"It could and should lead to a creative renaissance in which the oppressive filtering of the mass market is turned upside down," Gabriel says.
In future, he sees three levels of digital media delivery: free, paid for with extra content, and high cost physical products.
The latter could be: "Small limited edition sculptures that when placed on a computer open up a library of an artists material or is personalised for the fan in some way," Gabriel says.
Xplora 1 worked a little like that. As users solved puzzles, new sections of the experience were opened up, unlocking live concert video and more.
As an artist, Gabriel continues to experiment. "I'm excited at using the internet to do new things with my music - inviting people to remix my songs, or my Full Moon Club, where I try and do something for my fans when there's a full moon," he says.